Network Connection Always Shows Access Denied

If you are always getting Access Denied errors when trying to connect to a XP computer,
and you know you have the correct user names and passwords on the computer,
the solution may be a simple registry edit.
1. Start Regedit
2. Go to HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlSet / Control / Lsa
3. Change the value of a key called "restrictanonymous" to 0 instead of 1
4. Don't change "restrictanonymoussam" value.
5. Reboot